I once suggested this, when you select grenade, the only commo-rose option should be a single 'Grenade!' so that you can decide whether you want to say it or not
I originally wanted the grenade sound in as it is to have bots say it, but seeing that they don't, I don't see the use, to anyone.. except the enemy.
Also, ability to put the pin back after its pulled i.e once holding fire. Simply put, if you change the weapon selected, you should be able to save the nade.. don't discuss, not the main suggestion here